Author
Geological Survey (U.S.)
17
Nickles, John M. 1859-1945
16
Weeks, Fred Boughton, 1864-1942
12
Clarke, Frank Wigglesworth, 1847-1931
4
Perrine, Charles D., 1867-1951
3
Gannett, Henry, 1846-1914
2
Geological Survey (U.S.),
2
Spurr, Josiah Edward, 1870-1950
2
Adams, George I. 1870-1932
1
Bascom, F. 1862-1945
1
Becker, George F. 1847-1919
1
Cleland, Herdman Fitzgerald, 1869-1935
1
Collier, Arthur J. 1866-1939
1
Dale, T. Nelson 1845-1937
1
Darton, Nelson Horatio, 1865-1948
1
Eckel, Edwin C. 1875-1941
1
Emerson, Benjamin Kendall, 1843-1932
1
Fontaine, William Morris, 1835-1913
1
Fuller, Myron L.
1
Girty, George Herbert, 1869-1939
1
Goode, Richard Urquhart, 1858-1903
1
Hall, C. W. 1845-1911
1
Hay, Robert, 1835-1895
1
Knowlton, Frank Hall, 1860-1926
1
Leith, C. K. 1875-1956
1
Lindgren, Waldemar, 1860-1939
1
Loughlin, G. F. 1880-1946
1
Marshall, R. B. 1867-1949
1
Newell, Frederick Haynes, 1862-1932
1
Nickles, John M. 1859-1945,
1
Schmeckebier, Laurence F. 1877-1959
1
Schultz, Alfred Reginald, 1876-
1
Shattuck, George Burbank, 1869-1934
1
Stanton, T. W. 1860-1953
1
Thom, Emma Mertins
1
Todd, J. E. 1846-1922
1
Walcott, Charles D. 1850-1927
1
Weed, Walter Harvey, 1862-1944
1
White, Charles A. 1826-1910
1
Winslow, Arthur, 1860-1938
1